Book Image

Building Games with Flutter

By : Paul Teale
Book Image

Building Games with Flutter

By: Paul Teale

Overview of this book

With its powerful tools and quick implementation capabilities, Flutter provides a new way to build scalable cross-platform apps. In this book, you'll learn how to build on your knowledge and use Flutter as the foundation for creating games. This game development book takes a hands-on approach to building a complete game from scratch. You'll see how to get started with the Flame library and build a simple animated example to test Flame. You'll then discover how to organize and load images and audio in your Flutter game. As you advance, you'll gain insights into the game loop and set it up for fast and efficient processing. The book also guides you in using Tiled to create maps, add sprites to the maps that the player can interact with, and see how to use tilemap collision to create paths for a player to walk on. Finally, you'll learn how to make enemies more intelligent with artificial intelligence (AI). By the end of the book, you'll have gained the confidence to build fun multiplatform games with Flutter.
Table of Contents (17 chapters)
1
Part 1: Game Basics
5
Part 2: Graphics and Sound
11
Part 3: Advanced Games Programming

Moving our character with onscreen controls

In this section, we will start by connecting George's movement to the joystick.

Currently, the George class inherits his movement from the base class, Character, which it shares with the Skeleton and Zombie classes. As George will have different movement code from the enemy sprites, let's refactor the code to allow the enemy sprites' movement code. We will move the existing movement code into an EnemyCharacter class, which will become the new base class for the enemy sprites and remove this code from the Character class.

Let's get started:

  1. In the components folder, create a file called character_enemy.dart.
  2. Open the file and add the code at https://github.com/PacktPublishing/Building-Games-with-Flutter/blob/main/chapter05/lib/components/character_enemy.dart.

In this code, the EnemyCharacter class extends our Character class, and we have copied the onCollision, update, and changeDirection functions...